hw8 Solutionc

# hw8 Solutionc - Problem 12.25(15 Q(L/min dP(kpA 75 150 225...

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Problem 12.25 (15) Q (L/min) dP (kpA) Pin (kW) ha (m) Pfl (kW) Efficiency 75 277 1.2 28.3 0.35 29% 150 276 1.7 28.2 0.69 41% 225 263 2 26.8 0.99 49% 300 250 2.2 25.5 1.25 57% 375 231 2.4 23.6 1.44 60% 450 208 2.6 21.2 1.56 60% 525 178 3 18.2 1.56 52% The design flow rate is about 245 L/min !"! \$"! %!"! %\$"! ’!"! ! %!! ’!! (!! \$!! )!! !"#% ’(%)* !* %!* ’!* (!* \$!* )!* +!* ,-./01.2 34 ,-./01.2
Problem 12.33 (21) f 0.03 Entrance 0.5 l 60 m 90 deg bend 1.5 d 0.15 m exit 1 g 9.81 m/s2 pi 3.141592654 ha 2448.203176 0.680056438 (kL/s) (kL/min) q ha 1 3.680056438 1.25 4.062588184 1.5 4.530126985 1.75 5.082672841 2 5.720225751 2.25 6.442785717 2.5 7.250352737 2.75 8.142926811 3 9.120507941 3.25 10.18309612 3.5 11.33069136 3.75 12.56329366 4 13.88090301 4.25 15.28351941 4.5 16.77114287 4.75 18.34377338 5 20.00141095 5.25 21.74405557

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hw8 Solutionc - Problem 12.25(15 Q(L/min dP(kpA 75 150 225...

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